Hi, I'm trying to write a custom transformer in Spark ML and since that uses DataFrames, am trying to use flatMap function in DataFrame class in Java. Can you share a simple example of how to use the flatMap function to do word count on single column of the DataFrame. Thanks. Dimple -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/FlatMap-in-DataFrame-tp23199.html Sent from the Apache Spark User List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscribe@spark.apache.org For additional commands, e-mail: user-help@spark.apache.org